﻿/************************************************************************

   Extended Silverlight Toolkit

   Copyright (C) 2010-2012 Xceed Software Inc.

   This program is provided to you under the terms of the Microsoft Public
   License (Ms-PL) as published at http://extendedsilverlight.codeplex.com/license

   Please purchase a commercial version of this toolkit if you are using
   it in a commercial product. The commercial versions support the project,
   and also include more features for each control, priority support,
   source code, updates, removed watermark, and a proprietary license.

   Visit http://xceed.com and follow @datagrid on Twitter.

  **********************************************************************/

using System;

namespace Xceed.Silverlight.DataGrid
{
  internal class EditableRowVisitor : VisitorBase
  {
    #region Constructor

    public EditableRowVisitor(
      ChildrenPolicy childrenPolicy,
      bool fixedHeadersFooters,
      Action<EditableRow> action )
      : base( childrenPolicy, fixedHeadersFooters )
    {
      if( action == null )
        throw new ArgumentNullException( "action" );

      m_action = action;
    }

    #endregion

    public override void Visit( Row row )
    {
      var editableRow = row as EditableRow;

      if( editableRow != null )
      {
        m_action.Invoke( editableRow );
      }
      else
      {
        base.Visit( row );
      }
    }

    #region Private Fields

    private readonly Action<EditableRow> m_action;

    #endregion
  }
}
